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Author SHA1 Message Date
Chris Lattner
2e7125dc74 in X86-64 CCC, i8/i16 arguments are already properly zext/sext'd on input. 
Capture this so that downstream zext/sext's are optimized out.  This
compiles:
  int test(short X) { return (int)X; }

to:

_test:
        movl %edi, %eax
        ret

instead of:

_test:
        movswl %di, %eax
        ret


GCC produces this bizarre code:

_test:
        movw    %di, -12(%rsp)
        movswl  -12(%rsp),%eax
        ret

llvm-svn: 34623
 2007-02-26 03:18:56 +00:00
Chris Lattner
ad14e21b97 Fix an X86-64 abi bug. We now compile: 
void foo(short);
void bar(unsigned short A) {
  foo(A);
}

into:

_bar:
        subq $8, %rsp
        movswl %di, %edi
        call _foo
        addq $8, %rsp
        ret

instead of:

_bar:
        subq $8, %rsp
        call _foo
        addq $8, %rsp
        ret

Testcase here: test/CodeGen/X86/x86-64-shortint.ll

llvm-svn: 34615
 2007-02-25 23:10:46 +00:00
Chris Lattner
15c167cc61 fix CodeGen/X86/2007-02-25-FastCCStack.ll, a regression from my patch last 
night:  fastcc returns should only go in XMM0 if we have SSE2 or above.

llvm-svn: 34613
 2007-02-25 22:23:46 +00:00
Chris Lattner
65ba08d627 fastcc functions that return double values now return them in xmm0 on x86-32. 
This implements CodeGen/X86/fp-stack-ret.ll:test[23]

llvm-svn: 34592
 2007-02-25 09:31:16 +00:00
Chris Lattner
e4ba88824d allow vectors to be passed to stdcall/fastcall functions 
llvm-svn: 34590
 2007-02-25 09:14:25 +00:00
Chris Lattner
fac0b30da0 move LowerRET into the 'Return Value Calling Convention Implementation' 
section of the file.

llvm-svn: 34589
 2007-02-25 09:12:39 +00:00
Chris Lattner
65d915a3b6 make all Lower*CallTo implementations use LowerCallResult to handle their 
result value stuff.  This eliminates a bunch of duplicated code and now
GetRetValueLocs is the sole place that decides where a value is returned.

llvm-svn: 34588
 2007-02-25 09:10:05 +00:00
Chris Lattner
423224a7b4 pass the calling convention into Lower*CallTo, instead of using ad-hoc flags. 
llvm-svn: 34587
 2007-02-25 09:06:15 +00:00
Chris Lattner
8fa75c3ae8 factor a bunch of code out of LowerCCCCallTo into a new LowerCallResult 
function.  This function now uses GetRetValueLocs to determine *where*
the result values are located and concerns itself with *how* to pull the
values out.

llvm-svn: 34586
 2007-02-25 08:59:22 +00:00
Chris Lattner
3bfbc23ccd move some code around, pass in calling conv, even though it is unused 
llvm-svn: 34585
 2007-02-25 08:29:00 +00:00
Chris Lattner
f119813ff4 simplify result value lowering by splitting the selection of *where* to return 
registers out from the logic of *how* to return them.

This changes X86-64 to mark EAX live out when returning a 32-bit value,
where before it marked RAX liveout.

llvm-svn: 34582
 2007-02-25 08:15:11 +00:00
Chris Lattner
bcce79717b make void-return not a special case 
llvm-svn: 34579
 2007-02-25 07:18:38 +00:00
Chris Lattner
d00fcb3277 eliminate a bunch more temporary vectors from X86 lowering. 
llvm-svn: 34578
 2007-02-25 07:10:00 +00:00
Chris Lattner
f7eeef816d eliminate temporary vectors created during X86 lowering. 
llvm-svn: 34577
 2007-02-25 06:40:16 +00:00
Chris Lattner
6f25082e67 remove std::vector's in RET lowering. 
llvm-svn: 34576
 2007-02-25 06:21:57 +00:00
Evan Cheng
3ddb5d1018 80 col. violation. 
llvm-svn: 34520
 2007-02-23 03:03:16 +00:00
Anton Korobeynikov
b7350e191e External weak linkage is supported by recent binutils on mingw32. 
llvm-svn: 34519
 2007-02-23 01:58:50 +00:00
Evan Cheng
da51cf986a By default, spills kills the register being stored. 
llvm-svn: 34515
 2007-02-23 01:10:04 +00:00
Jim Laskey
b57ee1fc37 Simplify lowering and selection of exception ops. 
llvm-svn: 34488
 2007-02-22 14:56:36 +00:00
Jim Laskey
6a937ad320 Support to provide exception and selector registers. 
llvm-svn: 34482
 2007-02-21 22:54:50 +00:00
Evan Cheng
0e7be3c4e0 ELF / PIC requires GOT be in the EBX register during calls via PLT GOT pointer. 
Add implicit uses of EBX to calls to ensure liveintervalanalysis does not treat
the GOT in EBX move as dead upon definition.
This should fix PR1207.

llvm-svn: 34470
 2007-02-21 21:18:14 +00:00
Evan Cheng
a6399ed8d6 How the heck did I forget patterns for llvm.x86.sse2.cmp.sd? 
llvm-svn: 34434
 2007-02-20 00:39:09 +00:00
Evan Cheng
e4ab9c032b Re-apply my liveintervalanalysis changes. Now with PR1207 fixes. 
llvm-svn: 34428
 2007-02-19 21:49:54 +00:00
Reid Spencer
b27fcf3482 For PR1207: 
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.

llvm-svn: 34399
 2007-02-19 03:20:00 +00:00
Evan Cheng
8c2508f1ac Added getReservedRegs(). 
llvm-svn: 34376
 2007-02-17 11:06:00 +00:00
Chris Lattner
5cece73ec8 Generalize TargetData strings, to support more interesting forms of data. 
Patch by Scott Michel.

llvm-svn: 34266
 2007-02-14 05:52:17 +00:00
Chris Lattner
97739dcbca more notes 
llvm-svn: 34204
 2007-02-12 21:20:26 +00:00
Chris Lattner
216d889852 add a note 
llvm-svn: 34202
 2007-02-12 20:26:34 +00:00
Evan Cheng
400120abe5 This is done. 
llvm-svn: 34072
 2007-02-08 23:53:38 +00:00
Bill Wendling
289ab30051 Moved the MachOWriter and ELFWriter out of the Target/* files. Placed the 
definition of it into the CodeGen library. This is so that a backend doesn't
necessarily add in these writers if it doesn't use them (like in the lli
program).

llvm-svn: 34034
 2007-02-08 01:39:44 +00:00
Bill Wendling
abb65b1d4d Dead files. Functionality has been taken over by the Add*Writer functions. 
llvm-svn: 34029
 2007-02-08 01:32:51 +00:00
Chris Lattner
3e01807e87 Fix a miscompilation in the addr mode code trying to implement X | C and 
X + C to promote LEA formation.  We would incorrectly apply it in some cases
(test) and miss it in others.

This fixes CodeGen/X86/2007-02-04-OrAddrMode.ll

llvm-svn: 33884
 2007-02-04 20:18:17 +00:00
Anton Korobeynikov
c469cbc2e7 Fixed uninitialized stuff inside LegalizeDAG. Fortunately, the only 
affected part is codegen of "memove" inside x86 backend. This fixes
PR1144

llvm-svn: 33752
 2007-02-01 08:39:52 +00:00
Reid Spencer
19af04a142 For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid 
confusion with external linkage types.

llvm-svn: 33663
 2007-01-30 20:08:39 +00:00
Evan Cheng
3f02e5b1e7 Darwin -static should codegen static ctors / dtors to .constructor / .destructor sections. 
llvm-svn: 33657
 2007-01-30 08:04:53 +00:00
Jim Laskey
6f5d7d292f Only gather frame info if debug or eh. 
llvm-svn: 33639
 2007-01-29 23:20:22 +00:00
Nate Begeman
dc46021355 Finish off bug 680, allowing targets to custom lower frame and return 
address nodes.

llvm-svn: 33636
 2007-01-29 22:58:52 +00:00
Anton Korobeynikov
2b2aa3f0a1 Save all registers by default, as they can be used to pass parameters 
for "inreg" calls

llvm-svn: 33631
 2007-01-29 21:28:01 +00:00
Jim Laskey
eba0cf04e5 Landing pad-less eh for PPC. 
llvm-svn: 33622
 2007-01-29 18:51:14 +00:00
Nick Lewycky
e788dc93d5 Fix compile error "jump to case label crosses initialization". 
What compiler are people using that accepts this code?

llvm-svn: 33603
 2007-01-28 15:39:16 +00:00
Anton Korobeynikov
611d5e2eda Propagate changes from my local tree. This patch includes: 
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597
 2007-01-28 13:31:35 +00:00
Bill Wendling
5b83c819ec Make d'tor out-of-line. 
llvm-svn: 33585
 2007-01-27 11:40:32 +00:00
Bill Wendling
9c7b0a19eb Return an X86ELFWriterInfo object. 
llvm-svn: 33574
 2007-01-27 02:56:16 +00:00
Bill Wendling
f5cec978ec X86 implementation of the TargetELFWriterInfo class. 
llvm-svn: 33571
 2007-01-27 02:54:30 +00:00
Jim Laskey
64f4242072 Change the MachineDebugInfo to MachineModuleInfo to better reflect usage 
for debugging and exception handling.

llvm-svn: 33550
 2007-01-26 21:22:28 +00:00
Jim Laskey
23ed7d2625 Make LABEL a builtin opcode. 
llvm-svn: 33537
 2007-01-26 14:34:52 +00:00
Chris Lattner
18aeb42a6f Fix test/CFrontend/2007-01-24-InlineAsmCModifier.c on X86. The %c modifier 
says that no $ prefix should be emitted on X86.

llvm-svn: 33495
 2007-01-25 02:53:24 +00:00
Jim Laskey
ba1dc7a8c7 Call frames for intel. 
llvm-svn: 33490
 2007-01-24 19:15:24 +00:00
Jim Laskey
ebaec45158 80 columns 
llvm-svn: 33489
 2007-01-24 18:50:57 +00:00
Chris Lattner
784201d1b9 Fix a misencoding of CBW and CWD. This fixes PR1030. 
llvm-svn: 33486
 2007-01-24 18:31:00 +00:00
Evan Cheng
b6a4a7f72a PEI is now responsible for adding MaxCallFrameSize to frame size and align the stack. Each target can further adjust the frame size if necessary. 
llvm-svn: 33460
 2007-01-23 09:38:11 +00:00
Evan Cheng
d9d93832b0 hasFP() is now a virtual method of MRegisterInfo. 
llvm-svn: 33455
 2007-01-23 00:57:47 +00:00
Evan Cheng
8de7964067 Double and long preferred alignment is 8 byte. 
llvm-svn: 33446
 2007-01-22 23:09:50 +00:00
Evan Cheng
818c6bdfa2 Linux GOT indirect reference is only necessary in PIC mode. 
llvm-svn: 33441
 2007-01-22 21:34:25 +00:00
Chris Lattner
601692407e add a note 
llvm-svn: 33423
 2007-01-21 07:03:37 +00:00
Chris Lattner
9df9e3e57b Teach TargetData to handle 'preferred' alignment for each target, and use 
these alignment amounts to align scalars when we can.  Patch by Scott Michel!

llvm-svn: 33409
 2007-01-20 22:35:55 +00:00
Evan Cheng
174826c1b9 One more try... 
llvm-svn: 33400
 2007-01-20 10:17:53 +00:00
Evan Cheng
672910d722 Last check-in was bogus. There is no need to align the stack if the function is a leaf function (and without alloca). 
llvm-svn: 33399
 2007-01-20 10:11:56 +00:00
Evan Cheng
5807fbc934 Backend is reponsible for aligning the stack. 
llvm-svn: 33388
 2007-01-20 02:08:16 +00:00
Evan Cheng
f6b1a88a1a - Target PIC style is no longer affected by relocation model. 
- In x86-64 mode, symbols with external linkage (not just symbols which are
  defined externally) requires GOT indirect reference.
- Stylistic code clean up.

llvm-svn: 33345
 2007-01-18 22:27:12 +00:00
Bill Wendling
62dff8125a The zerofill directive needs a newline after it. 
llvm-svn: 33327
 2007-01-18 02:30:19 +00:00
Evan Cheng
7ff918163b Minor code clean up. 
llvm-svn: 33323
 2007-01-18 01:49:58 +00:00
Chris Lattner
770735e1ca Modify emission of jump tables on darwin to emit an extra "l" label that 
delimits the boundaries of jump tables.  This lets the linker's dead code
stripping optimization do a better job.

llvm-svn: 33315
 2007-01-18 01:15:58 +00:00
Chris Lattner
cea9f391af restructure code a bit to make use of continue (simplifying things). Generalize 
the .zerofill directive emission to not be darwin-specific

llvm-svn: 33304
 2007-01-17 17:44:25 +00:00
Chris Lattner
5f4435800e darwin doesn't support .bss, but it does have .zerofill 
llvm-svn: 33303
 2007-01-17 17:43:33 +00:00
Anton Korobeynikov
2509765bef * Fix one more bug in PIC codegen: extra load is needed for *all* 
non-statics.
* Introduce new option to output zero-initialized data to .bss section.
This can reduce size of binaries. Enable it by default for ELF &
Cygwin/Mingw targets. Probably, Darwin should be also added.

llvm-svn: 33299
 2007-01-17 10:33:08 +00:00
Bill Wendling
6cf6bb2d24 Revert patch. 
llvm-svn: 33298
 2007-01-17 09:06:13 +00:00
Bill Wendling
60dcce11c7 Create the specified TargetObjInfo and use it. 
llvm-svn: 33291
 2007-01-17 03:51:37 +00:00
Bill Wendling
5789edd7f5 New "TargetObjInfo" class. This holds information that the object writers will 
use to write things to the file. It's abstract so each target should implement
its own version for each writer type.

llvm-svn: 33286
 2007-01-17 03:46:30 +00:00
Anton Korobeynikov
47f343edc3 Missed "<" :) 
llvm-svn: 33265
 2007-01-16 20:22:18 +00:00
Anton Korobeynikov
9b380c56f2 Cleanup. Comments added. 
llvm-svn: 33260
 2007-01-16 18:23:09 +00:00
Chris Lattner
30cef1024d document some subtlety 
llvm-svn: 33257
 2007-01-16 17:51:40 +00:00
Anton Korobeynikov
8fbc09843e Emit symbol type information for ELF/COFF targets 
llvm-svn: 33256
 2007-01-16 16:41:57 +00:00
Bill Wendling
efde03bbf6 Instead of yet another enum indicating the "assembly language flavor", 
just use the one that's in the subtarget.

llvm-svn: 33255
 2007-01-16 09:29:17 +00:00
Bill Wendling
08272a2fa6 Make inline ASM the INTEL one if it's in that emission mode. 
llvm-svn: 33247
 2007-01-16 04:13:03 +00:00
Bill Wendling
cfdd717db5 Fix for PR1095: 
LLVM would miscompile ASM dialects when compiling for PPC. Added dialects for
the X86 and PPC backends. It defaults to "0", the first variant of a compound
inline asm expression.

llvm-svn: 33246
 2007-01-16 03:42:04 +00:00
Chris Lattner
851b9e93a2 add some notes 
llvm-svn: 33228
 2007-01-15 06:25:39 +00:00
Chris Lattner
c5e1611848 rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger. 
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)

llvm-svn: 33225
 2007-01-15 02:27:26 +00:00
Chris Lattner
bf132d8342 Make use of isInteger vs isIntegral more explicit 
llvm-svn: 33216
 2007-01-15 01:48:11 +00:00
Anton Korobeynikov
9398ef2167 No hidden visiblity on Mingw32/Cygwin 
llvm-svn: 33202
 2007-01-14 11:49:39 +00:00
Chris Lattner
f43ad084b8 add support for hidden visibility to darwin/x86 
llvm-svn: 33198
 2007-01-14 06:29:53 +00:00
Chris Lattner
716c76605c add a missing else. This caused globals to be printed as: 
movq ___dso_handle@GOTPCREL(%rip)(%rip), %rsi

instead of:
        movq ___dso_handle@GOTPCREL(%rip), %rsi

llvm-svn: 33196
 2007-01-14 06:08:14 +00:00
Chris Lattner
3560a9f595 darwin doesn't use .hidden. Disable this until we fix it right. 
llvm-svn: 33191
 2007-01-14 00:50:56 +00:00
Chris Lattner
a4d48724af Fix PR1103 and Regression/CodeGen/X86/2007-01-13-StackPtrIndex.ll 
llvm-svn: 33189
 2007-01-14 00:13:07 +00:00
Chris Lattner
937b09c54a remove dead code, frameindices must be resolve before the asmprinter runs. 
llvm-svn: 33187
 2007-01-13 23:59:03 +00:00
Chris Lattner
657e08b994 remove over-general code. 
llvm-svn: 33157
 2007-01-12 23:28:32 +00:00
Reid Spencer
09efdecc2d Adjust #includes to compensate for lost of DerivedTypes.h in 
TargetLowering.h

llvm-svn: 33154
 2007-01-12 23:22:14 +00:00
Anton Korobeynikov
548b9af9c2 * PIC codegen for X86/Linux has been implemented 
* PIC-aware internal structures in X86 Codegen have been refactored
* Visibility (default/weak) has been added
* Docs fixes (external weak linkage, visibility, formatting)

llvm-svn: 33136
 2007-01-12 19:20:47 +00:00
Reid Spencer
373d2bccea For PR1064: 
Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.

This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
   bits in an integer. The Type classes SubclassData field is used to
   store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
   64-bit integers. These are replaced with just IntegerType which is not
   a primitive any more.
3. Adjust the rest of LLVM to account for this change.

Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types.  Future increments
will rectify this situation.

llvm-svn: 33113
 2007-01-12 07:05:14 +00:00
Chris Lattner
a62936ee6f relax type 
llvm-svn: 32983
 2007-01-07 07:24:32 +00:00
Anton Korobeynikov
874aaaa34a As PR1085 was fixed, back out workaround 
llvm-svn: 32969
 2007-01-07 00:41:20 +00:00
Anton Korobeynikov
fdd778278f gcc often inserts it's own names for sections (e.g. 
gnu.linkonce.t.FunctionName). Convert them to "normal" LLVM names,
otherwise linker won't be able to merge them.

llvm-svn: 32958
 2007-01-06 18:24:26 +00:00
Chris Lattner
aed0e0292b new note 
llvm-svn: 32945
 2007-01-06 01:30:45 +00:00
Evan Cheng
df277336b8 - FCOPYSIGN custom lowering bug. Clear the sign bit of operand 0 first before 
or'ing in the sign bit of operand 1.
- Tweaking: rather than left shift the sign bit, fp_extend operand 1 first
  before taking its sign bit if its type is smaller than that of operand 0.

llvm-svn: 32932
 2007-01-05 21:37:56 +00:00
Evan Cheng
c273c9c830 Typo 
llvm-svn: 32902
 2007-01-05 08:32:24 +00:00
Evan Cheng
bcf3d2bd15 With SSE2, expand FCOPYSIGN to a series of SSE bitwise operations. 
llvm-svn: 32900
 2007-01-05 07:55:56 +00:00
Chris Lattner
aaafc3d16b fix testcase. It's not safe to strictly evaluate a load that should be lazy. 
llvm-svn: 32842
 2007-01-03 19:12:31 +00:00
Chris Lattner
a3f7277e2e Private labels start with .L on linux, not just . 
llvm-svn: 32841
 2007-01-03 18:16:48 +00:00
Reid Spencer
c2da5d3d97 Fix a comment that referred to the now defunct ubyte type. 
llvm-svn: 32840
 2007-01-03 17:24:59 +00:00
Reid Spencer
741b64d1ca Remove two useless bit casts. 
llvm-svn: 32839
 2007-01-03 17:24:11 +00:00
Anton Korobeynikov
2b39939053 Really big cleanup. 
- New target type "mingw" was introduced
- Same things for both mingw & cygwin are marked as "cygming" (as in
gcc)
- .lcomm is supported here, so allow LLVM to use it
- Correctly use underscored versions of setjmp & _longjmp for both mingw
& cygwin

llvm-svn: 32833
 2007-01-03 11:43:14 +00:00
Evan Cheng
bd6a333b52 Fix naming inconsistency. 
llvm-svn: 32823
 2007-01-02 21:33:40 +00:00
Reid Spencer
dda168599d For PR950: 
Three changes:
1. Convert signed integer types to signless versions.
2. Implement the @sext and @zext parameter attributes. Previously the
   type of an function parameter was used to determine whether it should
   be sign extended or zero extended before the call. This information is
   now communicated via the function type's parameter attributes.
3. The interface to LowerCallTo had to be changed in order to accommodate
   the parameter attribute information. Although it would have been
   convenient to pass in the FunctionType itself, there isn't always one
   present in the caller. Consequently, a signedness indication for the
   result type and for each parameter was provided for in the interface
   to this method. All implementations were changed to make the adjustment
   necessary.

llvm-svn: 32788
 2006-12-31 05:55:36 +00:00
Anton Korobeynikov
3a6faf0b96 Refactored JIT codegen for mingw32. Now we're using standart relocation 
type for distinguish JIT & non-JIT instead of "dirty" hacks :)

llvm-svn: 32745
 2006-12-22 22:29:05 +00:00
Chris Lattner
f04c00f475 add a note 
llvm-svn: 32741
 2006-12-22 01:03:22 +00:00
Anton Korobeynikov
df6487d069 Fixed 80 cols & style violation 
llvm-svn: 32720
 2006-12-20 20:40:30 +00:00
Anton Korobeynikov
76dbbd6e24 Fixed dllimported symbols support during JIT'ing. JIT on mingw32 
platform should be more or less workable. At least, sim is running fine
under lli :)

llvm-svn: 32711
 2006-12-20 01:03:20 +00:00
Chris Lattner
8896b6cb46 eliminate static ctors for Statistic objects. 
llvm-svn: 32703
 2006-12-19 22:59:26 +00:00
Evan Cheng
f5c9f4c3c9 Fix for PR1062 by Dan Gohman. 
llvm-svn: 32688
 2006-12-19 21:31:42 +00:00
Anton Korobeynikov
391dc74af0 Fix for PR1059: http://llvm.org/PR1059 
llvm-svn: 32685
 2006-12-19 21:04:20 +00:00
Chris Lattner
5e52d6c0da The x86-64 target machine should be used for amd64-* target triples. 
llvm-svn: 32678
 2006-12-19 19:40:09 +00:00
Chris Lattner
26f8533c7f Fix PR1061 and CodeGen/X86/2006-12-19-IntelSyntax.ll 
llvm-svn: 32676
 2006-12-19 19:29:58 +00:00
Rafael Espindola
08c0825f18 move ExtWeakSymbols to AsmPrinter 
llvm-svn: 32648
 2006-12-18 03:37:18 +00:00
Evan Cheng
32c45fa21e Some AT&T syntax assembler (e.g. Mac OS X) does not recognize the movq alias for i64 <-> XMM moves. 
llvm-svn: 32609
 2006-12-15 19:58:58 +00:00
Evan Cheng
c24bf8bd87 This is done. 
llvm-svn: 32591
 2006-12-15 05:50:39 +00:00
Evan Cheng
5effab79f3 f64 <-> i64 bit_convert using movq in 64-bit mode. 
llvm-svn: 32587
 2006-12-14 21:55:39 +00:00
Evan Cheng
4529b8cf2e Fix a couple of typo's. 
llvm-svn: 32585
 2006-12-14 19:46:06 +00:00
Evan Cheng
6100c83f79 This is done. 
llvm-svn: 32584
 2006-12-14 19:45:32 +00:00
Evan Cheng
9918e7780a Added MOVSS2DIrr and MOVDI2SSrr to foldMemeoryOperand(). 
llvm-svn: 32583
 2006-12-14 19:44:45 +00:00
Evan Cheng
4dc2f8e9bb - Rename MOVDSS2DIrr to MOVSS2DIrr for consistency sake. 
- Add MOVDI2SSrm and MOVSS2DImr to fold load / store for i32 <-> f32 bit_convert
  patterns.

llvm-svn: 32582
 2006-12-14 19:43:11 +00:00
Evan Cheng
504fec49b1 Add note. 
llvm-svn: 32561
 2006-12-13 20:59:43 +00:00
Chris Lattner
8f2a26ac12 Update note, with the SROA change, we now produce: 
_pairtest:
        movl 8(%esp), %eax
        movl 4(%esp), %ecx
        movd %eax, %xmm0
        movd %ecx, %xmm1
        addss %xmm0, %xmm1
        movl 12(%esp), %eax
        movss %xmm1, (%eax)
        ret

instead of:

_pairtest:
        subl $12, %esp
        movl 20(%esp), %eax
        movl %eax, 4(%esp)
        movl 16(%esp), %eax
        movl %eax, (%esp)
        movss (%esp), %xmm0
        addss 4(%esp), %xmm0
        movl 24(%esp), %eax
        movss %xmm0, (%eax)
        addl $12, %esp
        ret

llvm-svn: 32427
 2006-12-11 01:20:25 +00:00
Chris Lattner
a6428b2ce4 this is done 
llvm-svn: 32424
 2006-12-11 01:01:03 +00:00
Anton Korobeynikov
e76b69846d Cleaned setjmp/longjmp lowering interfaces. Now we're producing right 
code (both asm & cbe) for Mingw32 target.
Removed autoconf checks for underscored versions of setjmp/longjmp.

llvm-svn: 32415
 2006-12-10 23:12:42 +00:00
Rafael Espindola
8251abb0e9 fix test/Regression/CodeGen/X86/weak.ll 
if a variable has no initialization, I->getInitializer() will fail

llvm-svn: 32407
 2006-12-09 23:14:08 +00:00
Chris Lattner
51a6154ce5 Fix a bug introduced by the streams patch. DEBUG code was made unconditional. 
llvm-svn: 32351
 2006-12-08 05:41:26 +00:00
Bill Wendling
f13d78d3b8 What should be the last unnecessary <iostream>s in the library. 
llvm-svn: 32333
 2006-12-07 22:21:48 +00:00
Evan Cheng
f4788fe306 MI keeps a ptr of TargetInstrDescriptor, use it. 
llvm-svn: 32296
 2006-12-07 01:21:59 +00:00
Chris Lattner
06ba0b8202 add missing #include 
llvm-svn: 32280
 2006-12-06 18:14:47 +00:00
Chris Lattner
a531ce882e Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.

llvm-svn: 32279
 2006-12-06 17:46:33 +00:00
Evan Cheng
40a5de9cd9 Revert an unintended change. 
llvm-svn: 32239
 2006-12-05 22:03:40 +00:00
Evan Cheng
adeea85f7d - Switch X86-64 JIT to large code size model. 
- Re-enable some codegen niceties for X86-64 static relocation model codegen.
- Clean ups, etc.

llvm-svn: 32238
 2006-12-05 19:50:18 +00:00
Chris Lattner
6a9de21df5 If we have ScalarSSE, we can select bitconvert into single instructions. 
This compiles bitcast.ll:test3/test4 into:

_test3:
        movd %xmm0, %eax
        ret
_test4:
        movd %edi, %xmm0
        ret

llvm-svn: 32230
 2006-12-05 18:45:06 +00:00
Chris Lattner
0edf53eb71 Add a perf optzn corresponding to PR1033. 
llvm-svn: 32229
 2006-12-05 18:25:10 +00:00
Chris Lattner
4ad68ab4d7 Fix PR1033 and CodeGen/X86/bitcast.ll, by expanding bitcast to a load/store pair. 
This could be better, readme entry pending.

llvm-svn: 32228
 2006-12-05 18:22:22 +00:00
Chris Lattner
7368984a3d Fix typo noticed by Lauro Ramos Venancio, thanks! 
llvm-svn: 32223
 2006-12-05 17:29:40 +00:00
Evan Cheng
32c16b7d3a JIT large code model support. 
llvm-svn: 32220
 2006-12-05 07:29:55 +00:00
Evan Cheng
2c48ef5aab Asm printing bug. 
llvm-svn: 32218
 2006-12-05 06:43:58 +00:00
Evan Cheng
2c35691a02 - Fix X86-64 JIT by temporarily disabling code that treats GV address as 32-bit 
immediate in small code model. The JIT cannot ensure GV's are placed in the
lower 4G.
- Some preliminary support for large code model.

llvm-svn: 32215
 2006-12-05 04:01:03 +00:00
Evan Cheng
b16bf52453 Update 
llvm-svn: 32214
 2006-12-05 03:58:23 +00:00
Chris Lattner
0be88afd90 Add support for 64-bit 'r' constraint. Patch by by Rafael ~Avila de Espíndol! 
This fixes PR1029 and Regression/CodeGen/X86/x86-64-asm.ll

llvm-svn: 32206
 2006-12-04 22:38:21 +00:00
Evan Cheng
11e73ffe93 Non-darwin gcc should default to static relocation to match gcc. 
llvm-svn: 32184
 2006-12-04 18:07:10 +00:00
Evan Cheng
bf13611e84 Match TargetInstrInfo changes. 
llvm-svn: 32098
 2006-12-01 21:52:58 +00:00
Evan Cheng
5c7e78886c convertToThreeAddress() is now responsible for updating live info as well as inserting the new MI's. 
llvm-svn: 32097
 2006-12-01 21:52:41 +00:00
Evan Cheng
c5ad9caeff Add weak reference directive. 
llvm-svn: 32091
 2006-12-01 20:47:11 +00:00
Evan Cheng
04e66b07dc Fix 2005-05-08-FPStackifierPHI.ll failure. 
llvm-svn: 32071
 2006-12-01 10:11:51 +00:00
Evan Cheng
3cc87db480 A initialized global variable cannot be extern weak. However, if a global value's initializer is itself a external weak symbol, emit the weak reference. 
llvm-svn: 32069
 2006-12-01 09:13:26 +00:00
Evan Cheng
d326e5b35e Minor code clean up. 
llvm-svn: 32067
 2006-12-01 07:38:23 +00:00
Evan Cheng
5b43e8613e Fix indentation. 
llvm-svn: 32066
 2006-12-01 07:17:00 +00:00
Evan Cheng
1dfe5221c1 Darwin X86 external weak linkage support. 
llvm-svn: 32065
 2006-12-01 07:15:24 +00:00
Anton Korobeynikov
f627d28d9c Introducing external weak linkage. Darwin codegen should be added later. 
llvm-svn: 32052
 2006-12-01 00:25:12 +00:00
Anton Korobeynikov
25535e6c64 Factor out GVRequiresExtraLoad() from .h to .cpp 
llvm-svn: 32048
 2006-11-30 22:42:55 +00:00
Evan Cheng
456101ebb9 - Use a different wrapper node for RIP-relative GV, etc. 
- Proper support for both small static and PIC modes under X86-64
- Some (non-optimal) support for medium modes.

llvm-svn: 32046
 2006-11-30 21:55:46 +00:00
Evan Cheng
d8be97599a MachineInstr::setOpcode -> MachineInstr::setInstrDescriptor 
llvm-svn: 32034
 2006-11-30 07:12:03 +00:00
Evan Cheng
f64e341522 In PIC mode, GV not requiring an extra load can be used as address immediate. 
llvm-svn: 32028
 2006-11-29 23:48:14 +00:00
Evan Cheng
1e3f41acde Clean up. 
llvm-svn: 32027
 2006-11-29 23:46:27 +00:00
Evan Cheng
7e20347607 Fix for PR1018 - Better support for X86-64 Linux in small code model. 
llvm-svn: 32026
 2006-11-29 23:19:46 +00:00
Evan Cheng
f968824cdb Custom lower READCYCLECOUNTER for x86-64. 
llvm-svn: 32017
 2006-11-29 08:28:13 +00:00
Evan Cheng
52f30d0ff2 16-byte stack alignment for X86-64 ELF. Patch by Dan Gohman. 
llvm-svn: 32004
 2006-11-29 02:00:40 +00:00
Chris Lattner
4e07e4aa24 Upgrade the ugly darwin 64-bit bswap idiom (bswap %eax / bswap %edx / 
xchgl %eax, %edx) to llvm.bswap.i64.  This compiles:

long long test2(long long A) {
  return _OSSwapInt64(A);
}

to:

_test2:
        movl 8(%esp), %eax
        movl 4(%esp), %edx
        bswapl %eax
        bswapl %edx
        ret

instead of:

_test2:
        movl 8(%esp), %edx
        movl 4(%esp), %eax
        bswap   %eax
        bswap   %edx
        xchgl   %eax, %edx
        ret

GCC manages (with -fomit-frame-pointer) the uglier:

_test2:
        subl    $4, %esp
        movl    8(%esp), %eax
        movl    12(%esp), %edx
        bswap   %eax
        bswap   %edx
        xchgl   %eax, %edx
        addl    $4, %esp
        ret

llvm-svn: 32001
 2006-11-29 01:48:01 +00:00
Chris Lattner
50d2db3b77 Trivially lower 'bswap $0' into llvm.bswap. This fixes hexxagon with the 
JIT on darwin/x86, which has htonl implemented as inline asm.

llvm-svn: 31999
 2006-11-29 01:14:06 +00:00
Andrew Lenharth
aee28a6544 Identities are default now 
llvm-svn: 31980
 2006-11-28 22:28:08 +00:00
Evan Cheng
27408161df New entries. 
llvm-svn: 31976
 2006-11-28 19:59:25 +00:00
Andrew Lenharth
c0ee1250ad X86 asm -> gcc asm translation table (incomplete) 
llvm-svn: 31973
 2006-11-28 19:52:49 +00:00
Evan Cheng
62d19fbf98 Fix JIT encoding bugs for shift / rotate by one ops. 
llvm-svn: 31952
 2006-11-28 01:28:00 +00:00
Evan Cheng
98fa7ab4d7 Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead 
of opcode and number of operands.

llvm-svn: 31947
 2006-11-27 23:37:22 +00:00
Anton Korobeynikov
ddb73b4f1e Refactored *GVRequiresExtraLoad() to Subtarget method. 
llvm-svn: 31887
 2006-11-21 00:01:06 +00:00
Chris Lattner
86e39c84b6 Fix codegen for x86-64 on systems (like ppc or i386) that don't have 64-bit 
features autodetected.  This fixes PR1010 and Regression/CodeGen/X86/xmm-r64.ll
on non-x86-64 hosts.

llvm-svn: 31879
 2006-11-20 18:16:05 +00:00
Anton Korobeynikov
2449b29bdd We should perform extra load for dllimported calls 
llvm-svn: 31874
 2006-11-20 10:46:14 +00:00
Evan Cheng
a9176b38f9 For unsigned 8-bit division. Use movzbw to set the lower 8 bits of AX while 
clearing the upper 8-bits instead of issuing two instructions. This also
eliminates the need to target the AH register which can be problematic on
x86-64.

llvm-svn: 31832
 2006-11-17 22:10:14 +00:00
Jim Laskey
bc27bd0c6e Hopefully a good crack at making debugging work on intel -disable-fp-elim. 
llvm-svn: 31830
 2006-11-17 21:19:15 +00:00
Bill Wendling
b6061e32fa Removed even more std::cerr and #include <iostream> things. 
llvm-svn: 31813
 2006-11-17 07:52:03 +00:00
Evan Cheng
fc1b3d8bc8 Correct instructions for moving data between GR64 and SSE registers; also correct load i64 / store i64 from v2i64. 
llvm-svn: 31795
 2006-11-16 23:33:25 +00:00
Evan Cheng
a838021d2c Fix a potential bug: MOVPDI2DI, etc. are not copy instructions. 
llvm-svn: 31794
 2006-11-16 23:22:26 +00:00
Evan Cheng
c653e70b2d Align stubs on 4 byte boundary. This fixes 447.dealII. 
llvm-svn: 31790
 2006-11-16 20:13:34 +00:00
Evan Cheng
2a92afa25d Properly transfer kill / dead info. 
llvm-svn: 31765
 2006-11-15 20:58:11 +00:00
Evan Cheng
1b3bde1c1b Kill / dead info has been moved to MI's. 
llvm-svn: 31764
 2006-11-15 20:56:39 +00:00
Chris Lattner
1453db28c3 Remove unneeded forward decls 
llvm-svn: 31754
 2006-11-15 17:53:13 +00:00
Evan Cheng
7c9b3c7ea3 Revert. This wasn't meant to be checked in. 
llvm-svn: 31737
 2006-11-14 19:20:33 +00:00
Chris Lattner
da103686a6 it would be nice of ctlz were lowered to bsf etc. 
llvm-svn: 31730
 2006-11-14 08:08:46 +00:00
Evan Cheng
0e82270ff2 Matches MachineInstr changes. 
llvm-svn: 31712
 2006-11-13 23:36:35 +00:00
Evan Cheng
b9e2ae9e37 Add implicit use / def operands to created MI's. 
llvm-svn: 31676
 2006-11-11 10:21:44 +00:00
Evan Cheng
f880ed86ff Add all implicit defs to FP_REG_KILL mi. 
llvm-svn: 31674
 2006-11-11 07:19:36 +00:00
Evan Cheng
922c8f63b0 Add a note. 
llvm-svn: 31650
 2006-11-10 22:09:17 +00:00
Evan Cheng
8c372dc9b3 These are done. 
llvm-svn: 31649
 2006-11-10 22:03:35 +00:00
Evan Cheng
ae1f3758bd Don't dag combine floating point select to max and min intrinsics. Those 
take v4f32 / v2f64 operands and may end up causing larger spills / restores.
Added X86 specific nodes X86ISD::FMAX, X86ISD::FMIN instead.

This fixes PR996.

llvm-svn: 31645
 2006-11-10 21:43:37 +00:00
Evan Cheng
3a017e8abd Fix a bug in SelectScalarSSELoad. Since the load is wrapped in a 
SCALAR_TO_VECTOR, even if the hasOneUse() check pass we may end up folding
the load into two instructions. Make sure we check the SCALAR_TO_VECTOR
has only one use as well.

llvm-svn: 31641
 2006-11-10 21:23:04 +00:00
Evan Cheng
de7ff3fa3d Fix a potential bug. 
llvm-svn: 31634
 2006-11-10 09:13:37 +00:00
Evan Cheng
013597778d Add implicit def / use operands to MachineInstr. 
llvm-svn: 31633
 2006-11-10 08:43:01 +00:00
Evan Cheng
6f0095807e Use TargetInstrInfo::getNumOperands() instead of MachineInstr::getNumOperands(). In preparation for implicit reg def/use changes. 
llvm-svn: 31616
 2006-11-10 01:28:43 +00:00
Anton Korobeynikov
23ffdb1971 Fixing PR990: http://llvm.org/PR990. 
This should unbreak csretcc on Linux & mingw targets. Several tests from
llvm-test should be also restored (fftbench, bigfib).

llvm-svn: 31613
 2006-11-10 00:48:11 +00:00
Evan Cheng
8743c67826 Remove M_2_ADDR_FLAG. 
llvm-svn: 31583
 2006-11-09 02:22:54 +00:00
Evan Cheng
2edeb17aed Use movl+xchgl instead of pushl+popl. 
llvm-svn: 31572
 2006-11-08 20:35:37 +00:00
Evan Cheng
736a8eb3cd Match tblegen changes. 
llvm-svn: 31571
 2006-11-08 20:34:28 +00:00
Evan Cheng
7ca1f47a96 Fixed a bug which causes x86 be to incorrectly match 
shuffle v, undef, <2, ?, 3, ?>
to movhlps
It should match to unpckhps instead.

Added proper matching code for
shuffle v, undef, <2, 3, 2, 3>

llvm-svn: 31519
 2006-11-07 22:14:24 +00:00
Jeff Cohen
e1003da1a2 Unbreak VC++ build. 
llvm-svn: 31464
 2006-11-05 19:31:28 +00:00
Chris Lattner
7c265ad682 remove dead/redundant vars 
llvm-svn: 31435
 2006-11-03 23:48:56 +00:00
Evan Cheng
54c4be233e Dead code. 
llvm-svn: 31405
 2006-11-03 02:08:41 +00:00
Chris Lattner
24e8fdc1f6 silence warning 
llvm-svn: 31393
 2006-11-03 01:13:15 +00:00
Reid Spencer
4bafa71dc1 For PR786: 
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
 2006-11-02 20:25:50 +00:00
Evan Cheng
790d5c7697 Fix ldmxcsr JIT encoding. 
llvm-svn: 31343
 2006-11-01 06:53:52 +00:00
Evan Cheng
cabfd99a79 Nuke dead code. 
llvm-svn: 31327
 2006-10-31 21:53:31 +00:00
Chris Lattner
def30d3eda allow the address of a global to be used with the "i" constraint when in 
-static mode.  This implements PR882.

llvm-svn: 31326
 2006-10-31 20:13:11 +00:00
Chris Lattner
0571c323bf implement the 'c' inline asm modifier character 
llvm-svn: 31325
 2006-10-31 20:12:30 +00:00
Chris Lattner
3bed109ed9 handle "st" as "st(0)" 
llvm-svn: 31320
 2006-10-31 19:42:44 +00:00
Anton Korobeynikov
e6ba8a819c 1. Clean up code due to changes in SwitchTo*Section(2) 
2. Added partial debug support for mingw\cygwin targets (the same as
   Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
   for storing debug info by default, thus many (runtime) libraries has
   this information included. These formats shouldn't be mixed in one binary
   ('stabs' & 'DWARF'), otherwise binutils tools will be confused.

llvm-svn: 31311
 2006-10-31 08:31:24 +00:00
Anton Korobeynikov
9867bf5eaf Unbreaking static ctors patch. 
Defaulting second arguments of SwitchTo*Section, this should make things
somehow clearer.

llvm-svn: 31306
 2006-10-31 06:11:06 +00:00
Reid Spencer
0b5a938e79 Make this compile again. 
llvm-svn: 31304
 2006-10-31 01:45:56 +00:00
Evan Cheng
a8168f310e Apply Aton's LLVM patch for PR973: Linux ctors / dtors support. 
llvm-svn: 31303
 2006-10-31 01:26:55 +00:00
Reid Spencer
db06ed9156 Add debug support for X86/ELF targets (Linux). This allows llvm-gcc4 
generated object modules to be debugged with gdb. Hopefully this helps
pre-release debugging.

llvm-svn: 31299
 2006-10-30 22:32:30 +00:00
Chris Lattner
ac9ed02670 fix wonky indentation 
llvm-svn: 31298
 2006-10-30 22:27:23 +00:00
Evan Cheng
5766dd6455 All targets expand BR_JT for now. 
llvm-svn: 31294
 2006-10-30 08:02:39 +00:00
Chris Lattner
dcfee77788 add another target hook for branch folding. 
llvm-svn: 31262
 2006-10-28 17:29:57 +00:00
Evan Cheng
45b6e99308 Doh. Must check if GV is constant first. 
llvm-svn: 31252
 2006-10-28 05:56:06 +00:00
Chris Lattner
b57c880eb0 don't distribute internal readme's 
llvm-svn: 31245
 2006-10-28 00:48:27 +00:00
Reid Spencer
6719e92a1a Make sure all the readme files get distributed. 
llvm-svn: 31244
 2006-10-28 00:11:39 +00:00
Evan Cheng
090e9abaee Fixed a significant bug where unpcklpd is incorrectly used to extract element 1 from a v2f64 value. 
llvm-svn: 31228
 2006-10-27 21:08:32 +00:00
Evan Cheng
a1ce4523e5 Fix for PR968: expand vector sdiv, udiv, srem, urem. 
llvm-svn: 31220
 2006-10-27 18:49:08 +00:00
Evan Cheng
3144b839f0 Put cstrings in .cstring section when compiling for Mac OS X. 
llvm-svn: 31203
 2006-10-26 19:18:18 +00:00
Evan Cheng
1abe8bd233 During vector shuffle lowering, we sometimes commute a vector shuffle to try 
to match MOVL (movss, movsd, etc.). Don't forget to commute it back and try
unpck* and shufp* if that doesn't pan out.

llvm-svn: 31186
 2006-10-25 21:49:50 +00:00
Evan Cheng
034305a2e8 X86ISD::PEXTRW 3rd operand type is always target pointer type. 
llvm-svn: 31185
 2006-10-25 21:35:05 +00:00
Evan Cheng
01529405c9 Remove -disable-x86-shuffle-opti 
llvm-svn: 31183
 2006-10-25 20:48:19 +00:00
Devang Patel
0691019e12 Move getPreferredAlignmentLog from AsmPrinter to TargetData 
llvm-svn: 31171
 2006-10-24 20:32:14 +00:00
Chris Lattner
3826e15c8d this part implemented. 
llvm-svn: 31122
 2006-10-22 21:40:12 +00:00
Anton Korobeynikov
da7897a6c8 Do section switching right way for Mingw\Cygwin and Linux. 
This will allow (after llvm-gcc linkage fix) more dummy tests using
libstdc++ to pass on mingw :)

llvm-svn: 31120
 2006-10-22 21:37:13 +00:00
Chris Lattner
016325f336 Implement support for branch condition reversal. 
llvm-svn: 31099
 2006-10-21 05:52:40 +00:00
Chris Lattner
20bb8bfd45 Simplify code, no functionality change 
llvm-svn: 31097
 2006-10-21 05:42:09 +00:00
Chris Lattner
b638d287f4 allow insertion of a conditional branch with fall-through 
llvm-svn: 31095
 2006-10-21 05:34:23 +00:00
Chris Lattner
596c126372 update assert message 
llvm-svn: 31093
 2006-10-21 04:42:29 +00:00
Chris Lattner
3fb2b87f17 bugfix 
llvm-svn: 31074
 2006-10-20 20:44:34 +00:00
Chris Lattner
62a0f00312 Implement branch analysis/xform hooks required by the branch folding pass. 
llvm-svn: 31065
 2006-10-20 17:42:20 +00:00
Reid Spencer
d414793dbc For PR950: 
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063
 2006-10-20 07:07:24 +00:00
Chris Lattner
a86fff7583 fit in 80 cols 
llvm-svn: 31039
 2006-10-18 18:26:48 +00:00
Chris Lattner
fa22dc8afe add a note 
llvm-svn: 31038
 2006-10-18 17:04:09 +00:00
Anton Korobeynikov
d1436ae792 Fixed mingw\cygwin linkonce linkage once again. 
Added workaround for linker bug with linkonce sections.
Changed sections prefix to allow linker merge them
(PE loader doesn't like too much long-named sections :) )
All of this unbreaks libstdc++ on mingw32 allowing (small)
programs to be compiled, linked and run.

llvm-svn: 31033
 2006-10-18 09:12:29 +00:00
Chris Lattner
7353b07275 expose DWARF_LABEL opcode# so the branch folder can update debug info properly. 
llvm-svn: 31024
 2006-10-17 22:41:45 +00:00
Anton Korobeynikov
c86485a397 Adding linkonce linkage codegeneration support for mingw32\cygwin 
targets.

llvm-svn: 31011
 2006-10-17 20:29:49 +00:00
Evan Cheng
bf3e5a1d7a Proper fix. 
llvm-svn: 30993
 2006-10-17 00:24:49 +00:00
Evan Cheng
36ab7976a0 One more try. 
llvm-svn: 30992
 2006-10-16 23:44:08 +00:00
Evan Cheng
1cf362ec18 Unbreak x86-64 build. 
llvm-svn: 30990
 2006-10-16 22:53:28 +00:00
Evan Cheng
04bec886a9 Added a X86CompilationCallback variant which saves XMM argument registers for targets with SSE. 
llvm-svn: 30986
 2006-10-16 21:01:55 +00:00
Evan Cheng
b4d8323e54 Proper fix for rdar://problem/4770604 Thanks to Stuart Hastings! 
llvm-svn: 30985
 2006-10-16 21:00:37 +00:00
Evan Cheng
ca5eaf4020 Avoid getting into an infinite loop when -disable-x86-shuffle-opti is specified. 
llvm-svn: 30974
 2006-10-16 06:36:00 +00:00
Evan Cheng
c73547a71d SelectScalarSSELoad should call CanBeFoldedBy as well. 
llvm-svn: 30973
 2006-10-16 06:34:55 +00:00
Anton Korobeynikov
61d88967b9 Align stack size to DWORD boundary 
llvm-svn: 30964
 2006-10-14 20:53:35 +00:00
Evan Cheng
6c8de88f88 Corrected load folding check. We need to start from the root of the sub-dag 
being matched and ensure there isn't a non-direct path to the load (i.e. a
path that goes out of the sub-dag.)

llvm-svn: 30958
 2006-10-14 08:33:25 +00:00
Evan Cheng
fe5bb5dbe6 Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode. 
llvm-svn: 30945
 2006-10-13 21:14:26 +00:00
Chris Lattner
bea7a9de50 remove some dead code 
llvm-svn: 30938
 2006-10-13 20:40:42 +00:00
Chris Lattner
9777da8fb7 add a note 
llvm-svn: 30921
 2006-10-12 22:01:26 +00:00
Evan Cheng
76d365ac84 Doh. This wasn't causing problems by luck. 
llvm-svn: 30914
 2006-10-12 19:13:59 +00:00